William haas



W. HAAS.

VENT PIPE.

APPLICATION FILED MAILS. I9I9.

Patented Nov. 18, 1919.

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Ars rn WILLJEAM. HAAS, OF DAYTON, OHIO, ASSIGNOR TO THE 'NIIiIAIVI` HAAS COMPANY, 0F DAYTON, OHIO, A COREORATION OF QHIO.

VENT-PIPE.

tenacia.

Specification of Letters Patent.

Patented Nov. 18, 1919.

Application led March 8, 1919. Serial No. 281,392.

To all whom t may concern.'

Be it known that l, VILLIAM Haris, a citizen of the United States, residing at Dayton, in the county of Montgomery and State of Ohio, have invented certain new and useful Improvements in Vent-Pipes, of which the following is a specification, reference being had therein to the accompanying drawing.

rlhis invention relates to in'iprovements in vent pipes, and 'has for its particular object to provide improved means for protecting roof flashings to prevent leakage at the juncture between the vent pipe and the f1ash ing.

The common practice is, in order to obtain a close fit between the flashing and the pipe, to lead calk the joint, but this method is expensive and generally unsatisfactory. It is a difficult operation to make on the roof of a building, being more or less dangerous both to the workman and to the building itself on account of the means required for heating the material and tool for the operation.

Calking the joint is further unsatisfactory on account of the contraction and expansion of the pipe which is sufficient in cold and hot weather to affect the joint, causing the joint under the strain to break openhand developing leakage between the flashing and the pipe.

To overcome this difficulty I have evolved a simple, effective means whereby calking or other treatment of the joint is rendered unnecessary and leakage at the joint is prevented, my invention consisting in providing the pipe with an inverted downwardly projecting flange overhanging the upper edge of the flashing, acting as 'a protector or water shed to the joint and excluding water therefrom.

Referring to the accompanying drawings,

Figure l is an elevation of a section of vent pipe provided with an increaser as required under the laws governing buildings in certain States, and having` formed integral of the pipe, the protector flange constituting my invention:

Fig. 2 is an elevation, partly in section, of the section of pipe shown in Fig. l in combination with the flashing as related to the roof line of a building.

In the drawings l represents the lower portion of the vent pipe of normal size which extends into the building, the upper portion of the pipe 2 being enlarged to compensate for partial closing of the exposed end of the pipe by soot and ice formation, the enlarged end being known in the trades as the pipe increase/W.

As here shown the flashing protector flange 3 is made integral of the enlarged portion of the pipe, the downwardly projecting portion of the flange having sufficient depth to serve as a cover or protector for the upper portion of the flashing l and flashing joint 5 and acting effectually to prevent ingress of moisture through the joint.

By -my improved arrangement only the usual fitting of the joint7 without calking or other treatment of any kind, is all that is required, the pipe being free to contract or expand within the joint without affecting in the least the function of the protecting flange.

Having thus fully described my invention, what I claim as new and desire to secure by Letters Patent, is

l. In a vent pipe, a pipe extending beneath a roof and having a portion thereof of increased diameter extending through and above said roof, an inverted housing made integral of the portion of said pipe extending above the roof and a flashing secured to the roof and surrounding said pipe and having its upper end extending into said housing.

2. In a vent pipe, a pipe extending beneath a roof and having a portion thereof of increased diameter extending through and above said roof, an inverted housing made integral of the portion of said pipe extending above the roof and extending outwardly and downwardly thereof, and a flashing secured to the roof and surrounding said pipe and having its upper end eXtending into said housing.

3. In a vent pipe, a roof having an aperture therein, a pipe extending beneath the roof and having a portion of increased diameter extending through and above the roofa flashing surrounding said aperture and having a sleeve surrounding the pipe, an open joint between the sleeve and pipe,

and an inverted housing secured to the pipe above the roof and extending outwardly and downwardly over the end of said sleeve. l0

In testimony whereof, I aiiix my signature.

WILLIAM HAAS. 

